Answer:
D to show the culture of white South Africans
Step-by-step explanation:
Hally initially tells this joke so that she can show Sam and Willie that the relationship between him and his dad wasn't always bad. However, the joke really shows the culture of white South Africans. Telling this joke shows the naivete of Hally in how he views the joke as appropriate to tell around Sam and Willie. This shows the culture of white South Africans and how they viewed black people.